Durability of enamel bonding using one-step self-etch systems on ground and unground enamel.

Objective: To examine the morphological, early and long-term microtensile bond strengths (microTBS) of one-step self-etch systems to unground and ground enamel.

Materials And Methods: Resin composite (Filtek Z250) buildups were bonded to the buccal and lingual enamel surfaces (unground, bur-cut or SiC-roughened enamel) of third molars after adhesive application using the following adhesives: Clearfil S3 Bond (CS3); Adper Prompt L-Pop (ADP); iBond (iB) and, as the control, Clearfil SE Bond (CSE). Six tooth halves were assigned for each condition.

Durability of enamel bonding using two-step self-etch systems on ground and unground enamel.

This study examined the early and long-term microtensile bond strengths (MTBS) and interfacial enamel gap formation (IGW) of two-step self-etch systems to unground and ground enamel. Resin composite (Filtek Z250) buildups were bonded to proximal enamel surfaces (unground, bur-cut or SiC-treated enamel) of third molars after the application of four self-etch adhesives: a mild (Clearfil SE Bond [SE]), two moderate (Optibond Solo Plus Self-Etch Primer [SO] and AdheSE [AD]) and a strong adhesive (Tyrian Self Priming Etchant + One Step Plus [TY]) and two etch-and-rinse adhesive systems (Single Bond [SB] and Scotchbond Multi-Purpose Plus [SBMP]). Ten tooth halves were assigned for each adhesive.

Impact of adhesive application to wet and dry dentin on long-term resin-dentin bond strengths.

This study compared the effects of moisture and rubbing action on the immediate and one-year microtensile bond strength (BS) of an ethanol/water-based adhesive system (Single Bond [SB]) and an acetone-based system (One Step [OS]) to dentin. A flat superficial dentin surface on 60 human molars was exposed by wet abrasion. Two coats of the adhesives were applied on either a dry (D) or rewetted surface (W) with no (NRA), slight (SRA) or vigorous rubbing action (VRA).

Effects of moisture degree and rubbing action on the immediate resin-dentin bond strength.

Objectives: To compare the effects of moisture and rubbing action on the microtensile bond strength (BS) of an ethanol/water-based (Single Bond [SB]) and an acetone-based system (One-Step [OS]) to dentin.

Methods: On 60 human molars, a flat superficial dentin surface was exposed by wet abrasion. Two coats of the adhesives were applied on either a dry (D) or rewetted surface (W), under no rubbing action (NRA), slight (SRA) or vigorous rubbing action (VRA).